Udemy.com is a platform or marketplace for online learning.
If you want to learn something specific, then this is best place to start. You can find courses about bakery, IT, languages etc.
Yes it's commercial site and most things are not for free. But if you search for coupons or buy it on sale, It costs something about 15$.
And the best thing what you can do on this platform - If you are brave enough and want to teach something, you can create course and sell it to whole world.
So it's not expensive for your education?
Go and grab something what you wanted to learn for a years!

Post type: 
Rolands Kalpiņš
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